. Itu-r, IMT Vision -Framework and overall objectives of the future development of IMT for 2020 and beyond, 2015.

. Ericsson, Ericsson Mobility Report, 2018.

. Ericsson, Ericsson Mobility Visualizer, 2018.

, Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2016.

. Huawei, 5G: A Technology Vision, 2013.

J. G. Andrews, S. Buzzi, W. Choi, S. V. Hanly, A. Lozano et al.,

. Zhang, What Will 5G Be?, IEEE Journal on Selected Areas in Communications, vol.32, pp.1065-1082, 2014.

N. Docomo, 5G Radio Access: Requirements, Concept and Technologies, 2014.

. Ericsson, 5G Radio Access Technology and Capabilities, 2015.

. Nokia, Looking Ahead to 5G, 2014.

, Orange 5G Vision, Orange, 2016.

S. M. Alamouti, A simple transmit diversity technique for wireless communications, IEEE Journal on Selected Areas in Communications, vol.16, pp.1451-1458, 1998.

P. W. Wolniansky, G. J. Foschini, G. D. Golden, and R. A. Valenzuela, V-BLAST: an architecture for realizing very high data rates over the rich-scattering wireless channel, 1998 URSI International Symposium on Signals, Systems, and Electronics. Conference Proceedings (Cat. No.98EX167, pp.295-300, 1998.

B. N. Getu and J. B. Andersen, BER and spectral efficiency of a MIMO system, The 5th International Symposium on Wireless Personal Multimedia Communications, vol.2, pp.397-401, 2002.

F. Rusek, D. Persson, B. K. Lau, E. G. Larsson, T. L. Marzetta et al., Scaling Up MIMO: Opportunities and Challenges with Very Large Arrays, IEEE Signal Processing Magazine, vol.30, pp.40-60, 2013.

E. G. Larsson, O. Edfors, F. Tufvesson, and T. L. Marzetta, Massive MIMO for next generation wireless systems, IEEE Communications Magazine, vol.52, pp.186-195, 2014.

T. L. Marzetta, Massive MIMO: An Introduction, Bell Labs Technical Journal, vol.20, pp.11-22, 2015.

O. Elijah, C. Y. Leow, T. A. Rahman, S. Nunoo, and S. Z. Iliya, A Comprehensive Survey of Pilot Contamination in Massive MIMO-5G System, IEEE Communications Surveys & Tutorials, vol.18, pp.905-923, 2016.

Z. Gong, C. Li, and F. Jiang, Pilot contamination mitigation strategies in massive MIMO systems, IET Communications, vol.11, pp.2403-2409, 2017.

U. Gustavsson, C. Sanchéz-perez, T. Eriksson, F. Athley, G. Durisi et al., On the impact of hardware impairments on REFERENCES P, p.231

. Mimo, 2014 IEEE Globecom Workshops (GC Wkshps), pp.294-300, 2014.

. Itu-r, Future spectrum requirements estimate for terrestrial IMT, 2013.

A. K. Sen, Sir J.C. Bose and millimeter waves, Proceedings of IEEE TENCON '98. IEEE Region 10 International Conference on Global Connectivity in Energy, Computer, Communication and Control (Cat. No.98CH36229), vol.2, pp.288-290, 1998.

D. T. Jangam, Mm Waves Role in Satellite Communication, IOSR Journal of Electronics and Communication Engineering (IOSR-JECE), vol.4, pp.1-04, 2013.

N. P. Narekar and D. M. Bhalerao, A survey on obstacles for 5G communication, 2015 International Conference on Communications and Signal Processing, pp.831-0835, 2015.

P. Nagaraj, Impact of atmospheric impairments on mmWave based outdoor communication, 2018.

H. M. Rahim, C. Y. Leow, and T. A. Rahman, Millimeter wave propagation through foliage: Comparison of models, 2015 IEEE 12th Malaysia International Conference on Communications (MICC), pp.236-240, 2015.

J. L. Langston, Local Multipoint Distribution Services (LMDS) system concepts and implementation, 1997 IEEE MTT-S Symposium on Technologies for Wireless Applications Digest, pp.12-15, 1997.

C. J. Hansen, WiGiG: Multi-gigabit wireless communications in the 60 GHz band, IEEE Wireless Communications, vol.18, pp.6-7, 2011.

T. S. Rappaport, S. Sun, R. Mayzus, H. Zhao, Y. Azar et al., Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!, IEEE Access, vol.1, pp.335-349, 2013.

S. Rangan, T. S. Rappaport, and E. Erkip, Millimeter-Wave Cellular Wireless Networks: Potentials and Challenges, Proceedings of the IEEE, vol.102, pp.366-385, 2014.

T. E. Bogale and L. B. Le, Massive MIMO and mmWave for 5G Wireless HetNet: Potential Benefits and Challenges, IEEE Vehicular Technology Magazine, vol.11, pp.64-75, 2016.

M. Mantash and T. A. Denidni, Millimeter-wave beam-steering antenna array for 5G applications, 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, pp.1-3, 2017.

B. Romanous, N. Bitar, A. Imran, and H. Refai, Network densification: Challenges and opportunities in enabling 5G, 2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD), pp.129-134, 2015.

V. Chandrasekhar, J. G. Andrews, and A. Gatherer, Femtocell networks: a survey, IEEE Communications Magazine, vol.46, pp.59-67, 2008.

I. Petrut, M. Otesteanu, C. Balint, and G. Budura, Improved LTE macro layer indoor coverage using small cell technologies, 2014 11th International Symposium on Electronics and Telecommunications (ISETC), pp.1-4, 2014.

E. Hossain and M. Hasan, 5G cellular: key enabling technologies and research challenges, IEEE Instrumentation & Measurement Magazine, vol.18, p.232, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01121142

K. S. Jyothsna, Enhanced CoMP technique for interference cancellation in HETNets of LTE, International Journal of Scientific & Engineering Research, vol.7, 2016.

A. M. Sadekar and R. H. Hafez, LTE-A enhanced Inter-cell Interference Coordination (eICIC) with Pico cell adaptive antenna, 2015 6th International Conference on the Network of the Future (NOF), pp.1-6, 2015.

. 3gpp, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network, vol.839

, Mobility Enhancements in Heterogeneous Networks, 2015.

A. Mahbas, H. Zhu, and J. Wang, Mobility Management in Small Cell Networks, GLOBECOM 2017 -2017 IEEE Global Communications Conference, pp.1-6, 2017.

M. T. Nguyen, S. Kwon, and H. Kim, Mobility Robustness Optimization for Handover Failure Reduction in LTE Small-Cell Networks, IEEE Transactions on Vehicular Technology, vol.67, pp.4672-4676, 2018.

T. M. Nguyen, W. Ajib, and C. Assi, A Novel Cooperative Non-Orthogonal Multiple Access (NOMA) in Wireless Backhaul Two-Tier HetNets, IEEE Transactions on Wireless Communications, vol.17, pp.4873-4887, 2018.

. Telefonica, Cloud RAN Architecture for 5G, 2016.

C. M. Institute, C-RAN The Road Towards Green RAN, 2011.

. Etsi, Network Functions Virtualisation (NFV)

, Architectural Framework, 2013.

, Network Slicing for 5G Networks & Services, 2016.

S. Abdelwahab, Network Function Virtualization in 5G, IEEE Communications Magazine, 2016.

B. Chatras, U. S. Kwong, and N. Bihannic, NFV enabling network slicing for 5G, 2017 20th Conference on Innovations in Clouds, Internet and Networks, pp.219-225, 2017.

, 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects, Feasibility Study on New Services and Markets Technology Enablers, 2016.

J. I. Choi, Achieving Single Channel, Full Duplex Wireless Communication, 2010.

N. H. Mahmood, M. G. Sarret, G. Berardinelli, and P. Mogensen, Full duplex communications in 5G small cells, 2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC, pp.1665-1670, 2017.

M. G. Sarret, M. Fleischer, G. Berardinelli, N. H. Mahmood, P. Mogensen et al., On the potential of full duplex performance in 5G ultra-dense small cell networks, 2016 24th European Signal Processing Conference, pp.764-768, 2016.

J. M. Silva, Y. Xu, G. Fodor, and C. Fischione, Distributed spectral efficiency maximization in full-duplex cellular networks, 2016 IEEE International Conference on Communications Workshops (ICC), pp.80-86, 2016.

J. M. Silva, G. Fodor, and C. Fischione, On the spectral efficiency and fairness in full-duplex cellular networks, 2017 IEEE International Conference on Communications, pp.1-6, 2017.

. References-p, , p.233

P. K. Barik, C. Singhal, and R. Datta, Throughput enhancement using D2D based relay-assisted communication in cellular networks, 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, pp.1-6, 2017.

Y. Hassan, F. Hussain, S. Hossen, S. Choudhury, and M. M. Alam, Interference Minimization in D2D Communication Underlaying Cellular Networks, IEEE Access, vol.5, pp.22471-22484, 2017.

M. N. Tehrani, M. Uysal, and H. Yanikomeroglu, Device-to-device communication in 5G cellular networks: challenges, solutions, and future directions, IEEE Communications Magazine, vol.52, pp.86-92, 2014.
DOI : 10.1109/mcom.2014.6815897

, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Spatial channel model for Multiple Input Multiple Output (MIMO) simulations (Release 6), 2003.

D. S. Baum, J. Hansen, J. Salo, G. D. Galdo, M. Milojevic et al., An interim channel model for beyond-3G systems: extending the 3GPP spatial channel model (SCM), 2005 IEEE 61st Vehicular Technology Conference, vol.5, pp.3132-3136, 2005.
DOI : 10.1109/vetecs.2005.1543924

, Final Report on Link Level and System Level Channel Models, 2005.

L. Liu, C. Oestges, J. Poutanen, K. Haneda, P. Vainikainen et al., The COST 2100 MIMO channel model, IEEE Wireless Communications, vol.19, pp.92-99, 2012.
DOI : 10.1109/mwc.2012.6393523
URL : http://portal.research.lu.se/ws/files/4271888/3232805.pdf

. Itu-r, Guidelines for evaluation of radio interface technologies for IMT-Advanced, Rep. ITU-R M, 2009.

, WINNER+ Final Channel Models, 2010.

. 3gpp, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on 3D channel model for LTE (Release 12), vol.873, 2015.

L. M. Correia, , 2006.

, Channel Models for 60 GHz WLAN Systems, IEEE P802.11 -Wireless LANs, 2010.

, METIS Channel Models, METIS, 2015.

. Miweba, Channel Modeling and Characterization, 2014.

, Measurement Results and Final mmMAGIC Channel Models, 2017.

, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on channel model for frequency spectrum above 6 GHz (Release 14), 2016.

, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on channel model for frequencies from 0.5 to 100 GHz, 2017.

S. Jaeckel, L. Raschkowski, K. Börner, and L. Thiele, QuaDRiGa: A 3-D Multi-Cell Channel Model With Time Evolution for Enabling Virtual Field Trials, IEEE Transactions on Antennas and Propagation, vol.62, pp.3242-3256, 2014.

T. S. Rappaport, G. R. Maccartney, M. K. Samimi, and S. Sun, Wideband Millimeter-Wave Propagation Measurements and Channel Models for Future Wireless Communication System Design, IEEE Transactions on Communications, vol.63, p.234, 2015.
DOI : 10.1109/tcomm.2015.2434384
URL : https://doi.org/10.1109/tcomm.2015.2434384

P. Bello, Characterization of Randomly Time-Variant Linear Channels, IEEE Transactions on Communications Systems, vol.11, pp.360-393, 1963.
DOI : 10.1109/tcom.1963.1088793

H. Zhao, R. Mayzus, S. Sun, M. Samimi, J. K. Schulz et al., 28 GHz millimeter wave cellular communication measurements for reflection and penetration loss in and around buildings in New York city, 2013 IEEE International Conference on Communications (ICC), pp.5163-5167, 2013.

P. Ökvist, H. Asplund, A. Simonsson, B. Halvarsson, J. Medbo et al., 15 GHz propagation properties assessed with 5G radio access prototype, 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp.2220-2224, 2015.

I. Rodriguez, H. C. Nguyen, N. T. Jorgensen, T. B. Sorensen, and P. Mogensen, Radio Propagation into Modern Buildings: Attenuation Measurements in the Range from 800 MHz to 18 GHz, 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall), pp.1-5, 2014.

C. Larsson, F. Harrysson, B. Olsson, and J. Berg, An outdoor-to-indoor propagation scenario at 28 GHz, The 8th European Conference on Antennas and Propagation, pp.3301-3304, 2014.

A. Roivainen, V. Hovinen, N. Tervo, and M. Latva-aho, Outdoor-to-indoor path loss modeling at 10.1 GHz, 2016 10th European Conference on Antennas and Propagation, pp.1-4, 2016.

T. Imai, K. Kitao, N. Tran, N. Omaki, Y. Okumura et al., Outdoor-toIndoor path loss modeling for 0.8 to 37 GHz band, 2016 10th European Conference on Antennas and Propagation, pp.1-4, 2016.

I. Rodriguez, H. C. Nguyen, T. B. Sorensen, J. Elling, J. A. Holm et al., Analysis of 38 GHz mmWave Propagation Characteristics of Urban Scenarios, Proceedings of European Wireless, pp.1-8, 2015.

E. J. Violette, R. H. Espeland, R. O. Debolt, and F. K. Schwering, Millimeter-wave propagation at street level in an urban environment, IEEE Transactions on Geoscience and Remote Sensing, vol.26, pp.368-380, 1988.

J. Ryan, G. R. Maccartney, and T. S. Rappaport, Indoor office wideband penetration loss measurements at 73 GHz, 2017 IEEE International Conference on Communications Workshops (ICC Workshops, pp.228-233, 2017.

S. Rajagopal, S. Abu-surra, and M. Malmirchegini, Channel Feasibility for Outdoor Non-Line-of-Sight mmWave Mobile Communication, 2012 IEEE Vehicular Technology Conference (VTC Fall), pp.1-6, 2012.

J. Conrat, H. Dekov, A. Nasr, and M. Lienard, Analysis of the Space-Time Channel Behavior in Outdoor-to-Indoor Environment, VTC Spring 2009 -IEEE 69th Vehicular Technology Conference, pp.1-5, 2009.
URL : https://hal.archives-ouvertes.fr/hal-00811745

Q. Zheng, J. Zhang, H. Yu, Y. Zhang, and L. Tian, Propagation statistic characteristic of 3D MIMO channel in outdoor-to-indoor scenario with different antenna heights, 2016 19th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp.411-416, 2016.

M. Kyro, V. Kolmonen, and P. Vainikainen, Experimental Propagation Channel Characterization of mm-Wave Radio Links in Urban Scenarios, IEEE Antennas and Wireless Propagation Letters, vol.11, p.235, 2012.

G. Lovnes, J. J. Reis, and R. H. Raekken, Channel sounding measurements at, p.59

, Indoor and Mobile Radio Communications, Wireless Networks -Catching the Mobile Future, 5th IEEE International Symposium on Personal, vol.2, pp.496-500, 1994.

P. F. Smulders and L. M. Correia, Characterisation of propagation in 60 GHz radio channels, Electronics & Communication Engineering Journal, vol.9, pp.73-80, 1997.

R. J. Weiler, M. Peter, T. Kühne, M. Wisotzki, and W. Keusgen, Simultaneous millimeter-wave multi-band channel sounding in an urban access scenario, 2015 9th European Conference on Antennas and Propagation (EuCAP), pp.1-5, 2015.

J. Park, J. Liang, J. Lee, H. Kwon, M. Kim et al., Millimeter-wave channel model parameters for urban microcellular environment based on 28 and 38 GHz measurements, 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp.1-5, 2016.

R. Naderpour, J. Vehmas, S. Nguyen, J. Järveläinen, and K. Haneda, Spatiotemporal channel sounding in a street canyon at 15, 28 and 60 GHz, 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp.1-6, 2016.

E. L. Cid, M. P. Táboas, M. G. Sánchez, and A. V. , Microcellular Radio Channel Characterization at 60 GHz for 5G Communications, IEEE Antennas and Wireless Propagation Letters, vol.16, pp.1476-1479, 2016.

S. Hur, Y. Cho, K. Taehwan, J. Park, A. F. Molisch et al., Wideband spatial channel model in an urban cellular environments at 28 GHz, 2015 9th European Conference on Antennas and Propagation, pp.1-5, 2015.

M. Kim, J. Takada, Y. Chang, J. Shen, and Y. Oda, Large scale characteristics of urban cellular wideband channels at 11 GHz, 2015 9th European Conference on Antennas and Propagation (EuCAP), pp.1-4, 2015.

V. Kristem, C. U. Bas, R. Wang, and A. F. Molisch, Outdoor Wideband Channel Measurements and Modeling in the 3-18 GHz Band, IEEE Transactions on Wireless Communications, vol.17, pp.4620-4633, 2018.

J. Ko, Y. Cho, S. Hur, T. Kim, J. Park et al., Millimeter-Wave Channel Measurements and Analysis for Statistical Spatial Channel Model in In-Building and Urban Environments at 28 GHz, IEEE Transactions on Wireless Communications, vol.16, pp.5853-5868, 2017.

P. Tang, L. Tian, and J. Zhang, Analysis of the millimeter wave channel characteristics for urban micro-cell mobile communication scenario, p.11, 2017.

M. Ghoraishi, S. Salous, Y. Gao, and R. Tafazolli, Millimeter wave spread in delay and azimuth for small cell propagation channel at 60 GHz, 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science, pp.1-4, 2017.

S. L. Nguyen, J. Medbo, M. Peter, A. Karttunen, K. Haneda et al., On the frequency dependency of radio channel's delay spread: Analyses and findings from mmMAGIC multi-frequency REFERENCES P, p.236

W. Keusgen, R. J. Weiler, M. Peter, M. Wisotzki, and B. Göktepe, Propagation measurements and simulations for millimeter-wave mobile access in a busy urban environment, 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves, pp.1-3, 2014.

M. Kim, J. Liang, Y. K. Yoon, and J. H. Kim, 28GHz path loss measurements in urban environments using wideband channel sounder, 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, pp.1798-1799, 2015.

Z. Zhong, C. Li, J. Zhao, and X. Zhang, Height-dependent path loss model and largescale characteristics analysis of 28 GHz and 38.6 GHz in urban micro scenarios, 2017 11th European Conference on Antennas and Propagation, pp.1818-1822, 2017.

H. C. Nguyen, I. Rodriguez, T. B. Sorensen, L. L. Sanchez, I. Kovacs et al., An Empirical Study of Urban Macro Propagation at 10, 18 and 28 GHz, 2016 IEEE 83rd Vehicular Technology Conference, pp.1-5, 2016.

T. Jiang, L. Tian, P. Tang, Z. Hu, and J. Zhang, Basestation 3-dimensional spatial propagation characteristics in urban microcell at 28 GHz, 2017 11th European Conference on Antennas and Propagation, pp.3167-3171, 2017.

Y. Han, L. Tian, X. Zhang, P. Tang, Z. Hu et al., Spatial Propagation Characteristics of 28 GHz Frequency Band in UMi Scenario, 2017 IEEE 86th Vehicular Technology Conference, pp.1-6, 2017.

J. A. Kong, Electromagnetic Wave Theory, 1990.

. Itu-r, Effects of building materials and structures on radiowave propagation above about 100 MHz, 2015.

S. Gobain,

S. Dwivedi, Window loss measurements and Model Validation, European Cooperation in Science and Technology (EURO-COST), vol.15104, 2018.

D. A. Mcnamara, ITRODUCTION TO The Uniform Geometrical Theory of Diffraction, 1990.

J. Conrat, P. Pajusco, and J. Thiriet, A Multibands Wideband Propagation Channel Sounder from 2 to 60 GHz, 2006 IEEE Instrumentation and Measurement Technology Conference Proceedings, pp.590-595, 2006.

S. Sun, G. R. Maccartney, M. K. Samimi, and T. S. Rappaport, Synthesizing Omnidirectional Antenna Patterns, Received Power and Path Loss from Directional Antennas for 5G Millimeter-Wave Communications, 2015 IEEE Global Communications Conference (GLOBECOM), pp.1-7, 2015.